extract-word: replace an use of `goto` with structured code
Using `goto` might be appropriate for the "finish" cases but it was
really not necessary at this point of the code... Just use if/else
blocks to accomplish the same.
Confirmed that the test cases in test-extract-word keep working as
expected.
The basic setup for the well-known system and session buses is
now done in read-only files in ${datadir} (normally /usr/share).
See the NEWS entry for 1.9.18 for details.
Andrew Jones [Tue, 3 Nov 2015 19:31:03 +0000 (13:31 -0600)]
detect-virt: dmi: look for KVM
Some guests (ARM, AArch64, x86-RHEL) have 'KVM' in the product name.
Look for that first in order to more precisely report "kvm" when
detecting a QEMU/KVM guest. Without this patch we report "qemu",
even if KVM acceleration is in use on ARM/AArch64 guests.
I've only tested a backported version of this and the previous
patch on an AArch64 guest (which worked). Of course it would be
nice to get regression testing on all guest types that depend on
dmi done.
Andrew Jones [Tue, 3 Nov 2015 18:10:13 +0000 (12:10 -0600)]
arm/aarch64: detect-virt: check dmi
ARM/AArch64 guests now have SMBIOS tables populated (when boot
with a late enough QEMU and a late enough AAVMF is used as the
bootloader). Furthermore, when booting ARM/AArch64 guests with
ACPI, the DT detection obviously no longer works, so we need
dmi detection.
Andrew Jones [Tue, 3 Nov 2015 20:49:38 +0000 (14:49 -0600)]
detect-virt: detect in best-heuristic order
afaict, this will fix a regression caused by commit 75f86906c5.
Where we used to report "kvm" before that patch, without this patch,
we would only report "qemu". The reason is because cpuid detection
must come before dmi detection. Also, both can safely come before
other xen heuristics. Untested.
sd-daemon: explicitly filter out -1 when parsing watchdog timeout
We already filter out 0, and as -1 is usually special (meaning infinity,
as in USEC_INFINITY) we should better not accept it either. Better safe
than sorry...
Tom Gundersen [Tue, 3 Nov 2015 15:13:47 +0000 (16:13 +0100)]
sd-pppoe: drop
It is really unclear if we want to / have the resources to support this fully, so drop it
for now. It can easily be brought back if a killer usecase emerges.
Note that this code was never hooked up, so this does not remove any features.
Martin Pitt [Tue, 3 Nov 2015 12:06:56 +0000 (06:06 -0600)]
build-sys: temporarily lower libmount version check
util-linux 2.27.1's configure.ac still claims to be 2.27.0, which breaks our
version check. Lower it back to 2.27.0 until util-linux gets a fixed tarball.
David Strauss [Tue, 3 Nov 2015 01:19:26 +0000 (17:19 -0800)]
man: Drop "internally," which is misleading
The existing text misleads readers into thinking how the notify socket protocol is "internals" and that they can only use the functions. However, the socket is part of the Interface Stability Promise. So, we should drop "internally" from the description so the man page both indicates both how the functions work and how one would talk to the socket directly.
log-generator: add option to generate easily compressible data
This is useful to check that compression actually works, and how
compression influences file size in the best-case-scenario for
compression. (The answer is that not as much as one would hope:
there's still a big overhead of the indexing and since every field
is compressed separately, even fields that compress very well
contribute to the file size. This overhead becomes negligible only
for very big fields.)
journalctl: when we fail to open a journal file, print why
When we enumerate journal files and encounter an invalid one, remember
which this, and show it to the user.
Note the possibly slightly surprising logic here: we store only one path
per error code. This means we show all error kinds but not every actual
error we encounter. This has the benefit of not requiring us to keep a
potentially unbounded list of errors with their sources around, but can
still provide a pretty complete overview on the errors we encountered.
- Always print a debug log message about files and directories we cannot
open right when it happens instead of the caller, thus reducing the
number of places where we need to generate the debug message.
- Always push the errors we encounter immediately into the error set,
when we run into them, instead of in the caller. Thus, we never forget
to push them in.
- Use stack instead of heap memory where we can.
- Make remove_file() void, since it cannot fail anyway and always
returned 0.
- Make local machine check of journal directories explicit in a
function, to make things more readable.
- Port to all directory listing loops FOREACH_DIRENT_ALL()
- sd-daemon is library code, hence never log at higher log levels than
LOG_DEBUG.
When reading stuff, we should only return EIO when an actual read error
occured, not when we don't like the data for whatever reason.
We already return ENODATA for all other kinds of file truncation, hence
do the same for the most obvious kind, so that callers know what ENODATA
means.
core: expose number of file descriptors in fd store on the bus
For each service expose how many file descriptors there are currently in
the fd store.
(Also, fix the exporting of the fdstore limit, given that the field is
just an "unsigned" but we exported it as "uint32_t". Not that there way
any effective difference, but let's make this clean...)
string-util: rework memory_erase() so that it cannot be optimized away
memory_erase() so far just called memset(), which the compiler might
optimize away under certain conditions if it feels there's benefit in
it. C11 knows a new memset_s() call that is like memset(), but may not
be optimized away. Ideally, we'd just use that call, but glibc currently
does not support it. Hence, implement our own simplistic version of it.
We use a GCC pragma to turn off optimization for this call, and also use
the "volatile" keyword on the pointers to ensure that gcc will use the
pointers as-is. According to a variety of internet sources, either one
does the trick. However, there are also reports that at least the
volatile thing isn't fully correct, hence let's add some snake oil and
employ both techniques.
Martin Pitt [Mon, 2 Nov 2015 16:05:20 +0000 (10:05 -0600)]
core: drop check for /etc/mtab
util-linux 2.27.1 now entirely stops looking at /etc/mtab, so we don't need to
verify /etc/mtab during early boot any more. Later on, tmpfiles.d/etc.conf will
fix /etc/mtab anyway, so there's not even a point in warning about it.
Drop test_mtab() and bump the util-linux dependency to >= 2.17.1.
journald: never block when sending messages on NOTIFY_SOCKET socket
Otherwise we might run into deadlocks, when journald blocks on the
notify socket on PID 1, and PID 1 blocks on IPC to dbus-daemon and
dbus-daemon blocks on logging to journald. Break this cycle by making
sure that journald never ever blocks on PID 1.
Note that this change disables support for event loop watchdog support,
as these messages are sent in blocking style by sd-event. That should
not be a big loss though, as people reported frequent problems with the
watchdog hitting journald on excessively slow IO.
sysctl.d: bump number of queueable AF_UNIX/SOCK_DGRAM datagrams
The default of 16 is pretty low, let's bump this to accomodate for more
queued datagrams. This is useful for AF_UNIX/SOCK_DGRAM logging and
sd_notify() sockets as this allows queuing more datagrams before things
start to block, thus improving parallelization and logging performance.
systemctl: add a way to explicitly request client-side unit installing
This adds support for a new environment variable
SYSTEMCTL_INSTALL_CLIENT_SIDE, that ensures that systemctl executes
install operations client-side instead of passing them to PID1. This is
useful in debugging situations, but even beyond that. However, we don't
want to make it official API, hence let's just make it an undocumented
environment variable.
Similar, add a second variable, SYSTEMCTL_SKIP_SYSV which allows
skipping the SysV chkconfig fall-back if set. This is useful for similar
reasons, and exposed as undocumented as environment variable for similar
reasons, too.
projects / thirdparty / systemd.git / log
